Question: What explosive chemical has the highest explosive velocity ?
Paraphrase: Which chemical that's explosive has the highest explosive velocity?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P2231 ?obj . ?ent wdt:P2868 wd:Q12870 } ORDER BY DESC(?obj)LIMIT 5 
Answer: TNT